Reducing and separating system.



No. 030,307. PATENTED SEPT. 4, 1000. M. s. WEBER.

REDUGING AND SEPARATING SYSTEM. A'PPLI'GATIoN-PILED MM2, 1005.

a SHEETS-SHEET 1.

mmm/afm N @105W mm PATENTED SEPT. 4, 1906.

No. 830.387. i

' M. s. WEBER.

REDUGING AND SBPARATING SYSTEM.

APPLICATION FILED MAYZ. 1905. 3 SHEETS-SHEET 2.

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4 TTRNEYS mm., v l' I N0. 830,387. PA'TENTED SEPT. 4, 1906.

M. s. WEEEE. EEDUGING AND SEPARATING SYSTEM.

APPLICATION FILED MAYZ, 1905.

3 SHEETS-SHEET 3.

ATTURNEVS f PATENT oEEIoE.

UNITED ySTATES MARTIN S. WEBER, OF EPHRATA, PENNSYLVANIA.

nEDuclNe. AND sEPAnA-rme. SYSTEM.

Specification of Letters Patent.

Patented sept. 4.19e6. l

Application filed May 2, 1905. Serial No. 2158.437.

State of Pennsylvania, have invented a new for market. Thiswcontains a considerable and Improved Reducing and Separating System,.of which the followingl is a full, clear, and exact description.

My invention relates to reducing and septo arating systems, and is especially adapted for operating upon coffee. A coffee-berry has, between and within its sections, an integument, which is a continuation of the hull and which is not removed in preparing the coffee amount of tannic'facid, which impairs the y flavor of the beverage made from the coffee and renders it unhealthful. To remove this substance and to furnish a convenient means 2o for reducing or grinding the berry for use by 2 5 cation, in which similar characters of reference indicate corresponding parts in all the vlews.

Figure 1 is a vertical lon 'tudinal section throughvv one embodiment o the invention, taken just inside the wall of the casing. Fig. 2 1s a transverse vertical section therethrough on the line 2 2 of Fig. 1. Fig. 3 is a horizontal section on the line 3 3-of Fi 1. Fig. 4 is Aa longitudinal sectional detai` through thek screen-shoe, it being taken on the line 4 4v of Fig. 3. Fig. 5 is a transverse section through the shoe on the line 5 5 of Fig. 4, and Fi 6 is a 'sectional detail showing the contro lingvalve operating between the branches of the conduit. i.

From the top of a suitable casing 10 is mounted a housing 11, which sup orts a hopper 12. At the bottom of the opper is a gate 13 for controlling the delivery of material toa pair of cracking or dividing rolls 14 and 15, which are situated in an opening in the top of the casing. The former of these rolls isrotatable xedbearingalwhile that numberedy 15 preferably has movable becarf tion to vary the relation of the roll to its con ings which may be shifted and fixed in posil;

spectively. The angles occupied by these links are preferably such that when the shoe moves forwardly or in the direction of downward inclination the rear links will be rising while the forward links are falling, thus se- .curing the proper tilting movement to effect the advance of material over the screen.

Projecting from the bottomof the shoe is an arm 21, to the lower end of which is pivoted a rod 22 from the strap of an eccentric 24, the shaft of which is-rotatably mounted in the casing. Across the bottom of theshoe below the screen is a board or collector 25; which converges toward the opening in a funnel' 26. Above the screen is situated-a rubbing member in the form of a board or plate 27, the feed or entrance end of which converges inwardly at 28 toward the surface of the screen to facilitate the' introduction of the material operated upon. The rubber at this end is connected to relatively fixed points, as the casing, by links or flexible members 29'. This connection, while modifying the movement of the rubber with respect to the screen, does not hold it out of contact therewith, its weight preferably being supported by the screen or material passing over it at this point. At the o posite end the rubber is shown as provided) with blocks or spacing members 29a,which maintain it out f engagement with the screen, so that there shall not be undue friction between the parts when the apparatus is running comparatively empty. The under side of the board 27 is shown as provided with. a covering of screen material 29h, this presenting va roughened surface and increasing the effectiveness and durability of therubber.

Through the casing, opposite the delivery end of the shoe, is an opening 30, towardI which is directed `the extremity of a blast-v conduit 31, terminating just below the end of the screen and leading from a fan 32. The eye-openings of the fan may be varied to regulate the blast by means of slides 33 moving in wa s upon the outside of the casing. From belowthe end of the screen and blastconduit a chute 34 leads toa grinding mechanism or mill 35o of any usual or convenient type. Below the mill maybe mounted a receptacle 36 accessible through an opening' normally closed by a door 37. The shoe-funlOO nel delivers to the end of a conduit 38, which Y is suiiciently expanded to permit the reciprocating mevement of the shoe. p duit, above themill, divides into branches 3 9 erates a belt-51.

. tion and provided with'a finger-piece 42 by which it may be operated.

' In the bottom of the casing is shown a motor 43, which may beof any desired type and which has a pulley 43a connected to a pulley 44 upon the mill-shaft by a belt 45. The mill-shaft also has fast upon it a pulley 46, from which a belt 47 passes over a pulley 48, fast upon the shaft of the roll 14. The millshaft, at the opposite side of the casing from the pulleys44 and 46, has a pulley 49, over which and a pulley 50 upon the fan-shaft op- This fan-shaft also carries a pulley 52, which is joined by a belt 53 with a pulley 54, fixed upon the eccentric-shaft. The diameters ofthe various pulleysV are such that under the normal motor speed the r proper relative rate of rotation will be imso break up or parted to the elements.

In the use of the apparatus the coffee-berries or other material to be operated upon are fed from the ho per between the rolls, which divide them that the intermediate 'section is released. This chaff and the berry then fall ,upon the screen, the former being of such a tough and woody characterthat it is not itself broken up, remaining on the upper side of the screen with the greater iplart of the body of the berry, .while some ner particles of the body which are produced in the process of division fall through upon the bottom board. As the chaff and large pieces advance, ortions of said chaii clinging to the body o the berry, they enter between the inclined end of the rubber and the'screen. erable extent against longitudinal movement by its supporting members, while the s reen is reciprocated by the eccentric 'connec ion. As a result the material is scoured between the two surfaces and the clinging piecesof chaff separated. The mixed material now tails over the end of thescreen, it falling through the blast from the conduit 31 which is' of sufficient strength to blow the chaff 'from the .apparatus through the opening 30.

, The pieces of the berry ing through are delivered to the receptacle.

The'portion which has fallen'throu h the screen upon the bottom board is disc arged 'byv .the funnel 4into the conduit. If .the grinding is to bel of a somewhat coarse char- The fornier is held to a con'sid' acter, this is already suiciently reduced, and it is therefore conveyed by the branch conduit 40 directly to the receptacle, the valve being in its vertical position. If, however, the material is to be pulverized, or finely reduced, the valve is shifted to its inclined position, which will cause the material from the funnel 26 to enter the mill through the branch conduit 39 and be operated upon with that tailing over the end of the screen.

Having thus described my invention, l claim as new and desire to secure by Letters Patent- .1. The combination with a screen and amill, of means for delivering the material tailing over'the screen at all times to the mill, and means for delivering the material passing through the screen either to the mill or outside said mill. 1 A

2. The combination with a -screen and a mill, of a bottom board for the screen having an opening, a conduit to which the opening in the bottom board delivers, said conduit having branches' extending to the mill and outside said mill, means for controlling the low through the conduit branches, and a chute leading from the end of the screen to the mill. 3. The combination with means for crack- -ing or breaking material, of a screen, a rubmil means for delivering the material tailing over the screen to the mill, and means for debingmember coperating with the screen, a

livering the material passing through the screen either to the mill or outside said null.

- '4. In a coffee-grindingapparatus, the combination of means for breaking or cracking the berries, a reciprocating screen-shoe, /a

over the screen at all times passes, a branched chute int which vdischarges .the material assing through the screen, one of the ranchesv of the chute discharging into the 'mill, and a valve in the chute for causing the f pass through \e `ither branch 1 I o material to thereof.

5. A coeefinding ap aratus, comprising cracking orireaking ro s, a reciprocating shoe below the rolls, a screen inthel shoe, a n rubbing member above and coperatmg with and coperat'ing therewith, a fan'for deliverl ing .air-current at the end of the screen, a

lnding mechanism, a chute leading from beow the end of the shoe and discharging into IOO `grinding-mill into which the material tailing v IOS the grinding mechanism, and a chute leading l ing mechanism, and a chute leading from below the discharge end of the screen and the blast-conduit and discharging into the grinding mechanism.

8. A coffee-grinding apparatus, comprising cracking or breaking rolls, a reciprocating screen below the rolls, a fan for delivering an air-current at the discharge end of the screen, a grinding mechanism, a chute leading from the discharge end of the screen and discharging into thc grinding mechanism, a branched chute receiving the material passing through the screen, one of the branches of the chute discharging into the grinding mechanism, and a valve in the said chute for causing the material to pass through either branch thereof.

9. A cofee-grinding machine, comprising cracking' or breaking rolls; a reciprocating shoe below the rolls,.a screen in thc shoe, a

fan having a blast-conduit terminating below the discharge end of the shoe, a grindingmill, a chute leading from below the discharge end of the shoe and the blast-conduit and discharging the material tailing over screen at all times into the mill, and a chute leading from below the bottom of the shoe and also discharging into the mill.

10. A coffee-grinding machine, comprising cracking or breaking rolls, a reciprocating shoe below the rolls, a screen in the shoe, a fan having a. blast-conduit terminating below the discharge end of the shoe, a grindingmill. a chute leading from below the discharge end of the shoe and the' blast-conduit and discharging into the mill, a branched chute leading from below the bottom of the shoe and having one member discharging into the mill. and a valve in the said chute for controlling the passage of the material through the branches thereof.

ln testin'iony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

MARTIN S. WEBER. l

Witnesses z A. P. RrssER, WM. FAUsT. 

